<template>
  <div class="wrapper" :class="{error}">
    <input :value="value" type="text" :disabled="disabled" :readonly="readonly"
           @change="$emit('change', $event.target.value)"
           @input="$emit('input', $event.target.value)"
           @focus="$emit('focus', $event.target.value)"
           @blur="$emit('blur', $event.target.value)"
    >
    <!-- $emit 参数1：事件名，参数2：传出的第一个参数，参数3：传出的第二个参数 -->
    <template v-if="error">
      <icon name="error" class="icon-error"></icon>
      <span class="errorMessage">{{error}}</span>
    </template>
  </div>
</template>
<script>
import Icon from './icon'
export default {
  components: {Icon},
  name: 'GuluInput',
  props: {
    value: {
      type: String
    },
    disabled: {
      type: Boolean,
      default: false
    },
    readonly: {
      type: Boolean,
      default: false
    },
    error: {
      type: String
    }
  }
}
</script>
<style lang="scss" scoped>
$height: 32px;
$border-color: #999;
$border-color-hover: #666;
$border-radius: 4px;
$font-size: 12px;
$box-shadow-color: rgba(0, 0, 0, 0.5);
$red: #F1453D;
.wrapper { font-size: $font-size; display: inline-flex;
  align-items: center;
  > :not(:last-child) {margin-right: .5em; }
  > input { height: 32px; border: 1px solid $border-color; border-radius: 4px; padding: 0 8px; font-size: inherit;
    &:hover { border-color: $border-color-hover; }
    &:focus { box-shadow: inset 0 1px 3px $box-shadow-color; outline: none; }
    &[disabled], &[readonly] {border-color: #bbb;color: #bbb;cursor: not-allowed; }
  }
  &.error {
    > input { border-color: $red; }
  }
  .icon-error { fill: $red; }
  .errorMessage { color: $red; }
}
</style>